Leaf-turner



(No Model.) 2 Sheets-Sheet 1. C. P. BROWN.

LEAP TURNER.

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LEAP TURNER.

No. 410,779. Patented Sept. l0, 1889.

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UNITED STATES PATENT OEFicE.

" CYRIL P. BROXVN, OF SPRING LAKE, MICHIGAN.

LEAF-TU RN ER.

SPECIFICATION forming part of Letters Patent No. 410,779, datedSeptember 10, 1889.

Application filed February 23, 1889. Serial No. 300,818. (No model.)

To all wir/0771, t may concern.-

Be it known that I, CYRIL P. BROWN, of Spring Lake, in the county ofOttawa and State of Michigan, have invented a new and ImprovedLeaf-Turner, of which the following is a specification, reference beinghad to the annexed drawings, forming a part thereof, in which- Figure lis a front elevation of my improved leaf-turner. Fig. 2 is a plan view.Fig. 3 is a detail side view of the key-lever. Fig. 4 is an invertedhorizontal sectional plan view taken on line 0c in Fig. l. Fig. 5 is aperspective view of the end of one of the leafturning arms, showing theleaf-hold ing spring unfolded. Fig. 6 is a perspective view of one ofthe arms, showing the leaf-holding spring folded. Fig. 7 is aperspective view of a holder for single sheets of music, and Fig. 8 is afront elevation of the same.

Similar letters of reference indicate corresponding parts in all theviews.

The obj ect of my invention is to provide an instrument for turning theleaves of music, printed matter, or manuscript quickly and withcertainty in either direction.

My invention consists in the combination of a series of arms, eachprovided with a loop at one end and a folding leaf-holding fork at theopposite end, a support for the loops, and a key pivoted to the centerof the instrument and carrying a double-acting catch adapted to engagethe arms upon either side of the instrument.

The invention also consists in the combination, with the leaf-turningarms and key, of a holder for loose sheets of music, printed matter, ormanuscript.

It also further consists in the combination, with the support of theleaf-turning mechanism, of folding arms for supporting a hook.

To the hack piece A is secured the plate B, which supports the mechanismof the leafturner. The plate B is provided with ears a,

projecting from its upper edge at right angles with thc face of theplate, forming a support for the lower edge of the hook, and upon thecenter of the plate B is formed a bracket b, to the upper part of whichis attached an arm C, terminating in a disk c, the said disk having uponthe under surface thereof the U- shaped projection d, provided with agroove ein its outer edge. In the disk c there is a slot f, ext-endingfrom the center thereof through the arm C to the plate B.

The arms D, which turn the leaves of music, are provided at th eirinnerends with L-shaped loops g, which embrace the disk c and the U- shapedprojection d. To the outer end of each arm D is pivotally attached aspring-wire fork h, the fork being provided with an eye i', which isheld in place by the screw or pivot j entering the end of the said armD. The spring-wire forks 7i are adapted to receive between them theleaves to be turned.

To the under surface of the arm C is pivoted a key-lever E, which isheld in a central position perpendicular to the plate B by angledsprings 7u k', the said springs being secured to the hack of the plateB, with their angled ends extending through apertures in the plate andhearing against opposite sides of the key-lever. This constructionpermits of moving the key-lever in either direction, as may be required.

To the upper surface of the key-lever E is pivoted a curved arm F,provided at opposite ends with hooks ZZ and with shoulders m on', whichproj ect inwardly a distance a little greater than the length of thehooks, the said hooks and shoulders heilig oppositely arranged withrespect to each other and located opposite the groove e in theprojection d. A straight spring n, secured to the top of the key-leverE, projects into a notch 0 and tends to hold the curved arm. F normallyin a central position.

The leaves to he turned are inserted in the spring-wire forks 7L. Byturning the key-lever E inv one direction-say toward the left, asindicated in dotted lines in Fig. 4*the shoulder m is made to ride overthe L-shaped loops g until it escapes the last loop, when it permits thehook Zto engage that loop, and a further movement of the key-lever Ecarries the arm D over toward the other side of the leafturner. When thekey-lever E is released, it, is returned to its central position by thespring L, and when again pressed toward the left it takes the next arm Din order by engagement with its loop g in the manner already described.This opera-tion may be continued IOO until all of the arms D aretransferred to the left side.v By reversing the motion of the key-leverE the hook Z will be brought into engagement with the loops g of the armD and the arms will be transferred from the left to the right side.

The back piece A is provided with folding arms p p', which serve assupports for the book placed on the leaf-turner, and also as supportsfor the leaf-turner.

When it is desired to hold a series of sheets of music or other papers,a leaf-holder G is provided, which is capable of holding one or morepieces of music. The bars q q', forming the body of the holder, areperforated to receive the wires fr, which are furnished with loops s forengaging the bar q, and are pivotally connected with springs t, securedto the bar q. In a slot in the center of the bar q is pivoted aneccentric H, which, when turned, bears upon the bar q and separates thetwo bars, so that sheets of music can be introduced between them. Vhenthe eccentric II is released, the springs t draw the bars together andclamp the music. In the lower end of the bar q is inserted a dowel u,which fits into a hole 'v in the top of the plate B,and to the side ofthe bar q isattached an oifset wire arm w, which is adapted to enter ahole y in the upper edge of the back piece A, and to the side of the barq is secured a cleat z, which bears against the face of the back piece Aand serves to'steady the leaf-holder G.

Although I have described my improvement as applicable to holding andturning sheets supporting-plate B, disk c, the `grooved U- shaped guideattached to the said disk, the arms D, provided with L-shaped loops g,the key-lever E, the springs 7c k, the curved arm F, pivoted to thekey-lever E and provided with hooks Z Z and projections m m', and thedouble-acting spring n, substantially as speciiied.

3. In a leaf-turner, the combination of the clamping-bars q q', thesprings t, wires r, and eccentric I-I, substantially as specified.

4. In a leaf-turner, the combination of the clamp G, provided with thedowel u and wire w, and the back piece A, substantiallyv as specified.

5. In a leaf-turner, the combination, with the back piece A, of thefolding arms p p', substantially as specified.

CYRIL P. BROWN. Witnesses:

H. F. HARBECK, S. S. RIDEOUT.

